CN2162018Y

CN2162018Y - Closed cable drum or reel joint

Info

Publication number: CN2162018Y
Application number: CN 93215728
Authority: CN
Inventors: 沈伟宏
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-15
Filing date: 1993-06-15
Publication date: 1994-04-13
Anticipated expiration: 2003-06-15

Abstract

The utility model relates to a closed rotary arm revolving joint. The utility model, aiming to simplify the structure and ensure operation safety, provides a closed rotary arm revolving joint which is composed of a left and a right rotary arms. One end of each rotary arm is composed of a pipe end with a through hole and the other end of each rotary arm is provided with a recess chuck body. The recess chuck bodies of the left and the right rotary arms are provided with two shaft ends which interworks to form a rotary connection pair and are vertical to the recess chuck bodies. The recess chuck bodies of the left and the right rotary arms are buckled to form a closed ring cavity which is communicated with the through holes on the pipe ends of the left and the right rotary arms.

Description

Closed cable drum or reel joint

The utility model belongs to the electric swivel of using, particularly a kind of closed rotary transfer arm joint.

In having the light fixture of extension rod, for making the user adjust lamp position easily, how adapter is set in extension rod, for preventing that light fixture from causing that when doing multidirectional adjustment the lead winding damages lead, the adapters of forming by center piece, middleware and both sides part that adopt more, center piece is fixedlyed connected with middleware, and the both sides part is hinged on the middleware both sides, and the passage of center piece is communicated with the passage of both sides part.This adapter structure complexity, cost height, generation is become flexible and is caused lead to expose easily in the hinged place.

The purpose of this utility model provides a kind of closed rotary transfer arm joint simple in structure, safe in utilization.

The utility model is the pipe end of band through hole by an end, the other end is that the left and right spiral arm of depression shape disk body is formed, having at the depression shape disk body center of left and right spiral arm works in coordination constitutes the secondary axle head perpendicular to depression shape disk body that is rotationally connected, and makes the depression shape disk body of left and right spiral arm fasten the back to form the sealing ring cavity that communicates with left and right spiral arm pipe end through hole.

Because the utility model is the pipe end of band through hole by an end, the other end is forming at left and right spiral arm of depression shape disk body, having at the depression shape disk body center of left and right spiral arm works in coordination constitutes the secondary axle head perpendicular to depression shape disk body that is rotationally connected, and makes the depression shape disk body of left and right spiral arm fasten the back to form the sealing ring cavity that communicates with left and right spiral arm pipe end through hole.After lead penetrated left-handed arm pipe end through hole, the vertical axle head of right swing arm was walked around on the branch both sides in the sealing ring cavity, passes from right swing arm pipe end through hole again, not only simple in structure, and because lead is positioned at the sealing ring cavity, can not expose, make safe in utilization, thereby reach the purpose of this utility model.

Fig. 1 is the utility model decomposition texture schematic isometric.

Fig. 2 is the utility model structural representation profile.

Fig. 3 is an A-A profile among Fig. 2.

Below in conjunction with accompanying drawing the utility model is further elaborated.

The utility model is made up of left and right spiral arm 1,2, and an end of left-handed arm 1 is the pipe end 11 of band through hole 111, and the other end is a depression shape disk body 12, has the axle head 122 of band center blind screwhole 121 perpendicular to depression shape disk body 12 at the center of depression shape disk body 12; One end of right swing arm 2 is the pipe end 21 of band through hole 211, the other end is a depression shape disk body 22, have the axle head 224 of the central through hole 223 of band reaming 221 and counterbore 222 perpendicular to depression shape disk body 22 at the center of depression shape disk body 22, a left side, right swing arm 1,2 depression

shape disk body

12,22 height is pipe end 11 separately, half of 21 diameters, the axle head 122 of left-handed arm places in the reaming 221 of right swing arm axle head 224, constitute the pair that is rotationally connected, and make a left side, right swing arm 1,2 depression

shape disk body

12,22 fasten the back forms and a left side, right swing arm 1,2 pipe ends 11,21 through hole 111, the 211 sealing ring cavities 3 that communicate, holding screw 4 pass the counterbore 222 on the depression shape disk body 21 of right swing arm 2, central through hole 223 is fastened on the blind screwhole 121 on the axle head 122 on the depression shape disk body 12 of left-handed arm 1.

During use lead 5 is penetrated in the through hole 111 of pipe end 11 of left-handed arm 1 and the depression shape disk body 12 of left-handed arm 1 is walked around on the branch both sides in sealing ring cavity 3 the both sides of axle head 122, and pass from the through hole 211 of the pipe end 21 of right swing arm 2, the reaming 221 of the axle head 224 of the depression shape disk body 22 of right swing arm 2 is enclosed within on the axle head 122 of depression shape disk body 12 of left-handed arm 1, and with screw 4 through counterbore 222, central through hole 223 is fastened on the blind screwhole 121 on the axle head 122 on the depression shape disk body 12 of left-handed arm 1, make a left side, right swing arm 1, be difficult for loosening between 2, and because a left side, right swing arm 1,2

pipe end

11,21 with depression shape disk body 12, conditioning each other between 22, making it can excessively not transfer causes the lead damage and places the leads 5 in the sealing ring cavity 3 can not expose.

Claims

1, a kind of closed rotary transfer arm joint, it is characterized in that it is the pipe end of band through hole by an end, the other end is that the left and right spiral arm of depression shape disk body is formed, having at the depression shape disk body center of left and right spiral arm works in coordination constitutes the secondary axle head perpendicular to depression shape disk body that is rotationally connected, and makes the depression shape disk body of left and right spiral arm fasten the back to form the sealing ring cavity that communicates with left and right spiral arm pipe end through hole.

2, closed rotary transfer arm joint according to claim 1, it is characterized in that having the axle head perpendicular to the depression shape disk body of left-handed arm of band center blind screwhole, have the axle head perpendicular to the depression shape disk body of right swing arm of the central through hole of band reaming and counterbore at the center of the depression disk body of right swing arm at the center of the depression shape disk body of left-handed arm; Left and right spiral arm the height of depression shape disk body be half of tube end diameter separately, the axle head of left-handed arm places in the reaming of right swing arm axle head, constitute the pair that is rotationally connected, and the depression shape disk body that makes left and right spiral arm fastens the back and forms the sealing ring cavity that communicates with the through hole of left and right spiral arm pipe end, and holding screw passes on the blind screwhole on the axle head on counterbore on the depression shape disk body of right swing arm, the depression shape disk body that central through hole is fastened on left-handed arm.